Heel breast finisher



April 1932- D. B. FRAZIER 1,855,284

HEEL BREAST FINISHER Filed Aug. 29, 1931 Inai INVENTOR. DMZ $244M,

ATTORNEY Patented Apr. 26, 1932 UNITED STATES DANIEL B. FRAZIEIR, OF RICHMOND, VIRGINIA HEEL BREAST FINISHER Application filed August 29, 1931.

My invention relates broadly to finishing toolsv and more particularly to a tool for performing a finishing operation on heels of shoes.

One of the objects of my invention is to provide a construction of heel breast finishing tool for shoes,.having means for se-. curing a renewable grinding surface in position on the finishing tool.

19 Another object .of my invention is to provide an arrangement of resilientstrip member which may be interlocked with parts of a rotary abrading tool for securing a. renewable abrading surface in position on the tool, in a manner in which the replacement of the abrading surface on the tool may be readily effected.

Still another object of my invention is to provide an arrangement 'of spring strip'device which is shiftable longitudinally of the finishing tool" for anchoring the parts of the renewable surface in position and insuring a uniform grindingoperation upon a shoe, while maintaining the. abrading surface in position on ,the finishing tool. i f Other andfurther objects of my invention reside in the construction ofa .finishing tool as set forth more fullyin the specification hereinafter. following by referenceto the 30 accompanying drawings, in which:

Figure 1.is a schematic view showing the position of the finishing tool of my invention during the, time of operation thereof upon a shoe; Fig. 2 is an end view of the finishing .tool "showing. the abrading surface locked inposition thereon; Fig. 3 is a crosssectional view. taken through the finishing tool on line 3-3 of Fig. 2; Fig. 4 is a lateral cross-sectional. view taken through the finishing tool on line t l of Fig. 3; Fig. 5 is a perspective view of .the resilient securing strip and spring.latch device, employed for securing the abrading. surface in position on the abrading tool; Fig. 6 is a perspective view showing the slotted surface of the finishing tool prior to the mounting of the sheet of abrading materialthereon; Fig. 7 is a perspective view of the finishing tool showing the sheet of'abrading material about to be anchored upon the surface of the tool; Fig. 8

Serial No. 560,209.

is a perspective view of the finishing tool with the sheet of abrading material about to be interlocked in position thereon; Fig. 9 1s a cross-sectional view of a modified form of finishing tool embodying my invention; and Fig. 10 is a perspective view showing a modified form of lock switch which may be employed for securing the abrading surface in position on the finishing tool.

Referring to the drawings in detail, refco erence character 1 designates the finishing tool generally,-the tool being driven by means of shaft 2 which carries the sleeve member 4, which is secured inposition on the driving shaft 2 by means of set screw 5. The set screw 5 has a socket 5a formedtherein for receiving the head of the wrench 5?) adapted to revolve the set screw 5 for anchoring the sleeve 4 in position on the driving shaft 2. The sleeve lis integrally connected with the frusto-conical shaped support 3, onwhich the sheet of abrading material 8 is carried. The frusto-conical supporting surface 3 has longitudinally extending slot 7 therein, through i which the ends 8a and 8b of the abrading sheet 8 project, as shown more clearly in Figs. 2 and 8. The abrading sheet 8 extends into abutment with the flange 6, which serves to support the abrading sheet on the frustroconical shaped surface 3. The ends 8a and 30 8b of the abrading sheet 8 are anchored in position by movement of the resilient strip members 9 and 10. The strip member 9 is pivotally mounted on member 11 which projects into the aligned apertures 12 adjacent the base of the frusto-conical shaped supporting surface 3. The resilient strip 9 is folded against the ends 8a and 8b of the sheet of abrading material, indicated at 8, and serves to anchor the abrading sheet in positon for abrasive action as a heel breast finisher. The resilient strip 10 is hingedly connected to the resilient strip 9 through the hinged con nection shown at 14, which is adapted tobe swung away from the inner surface of the frusto-conical shaped supporting surface 3 when the abrasive sheet is to be removed and renewed. The resilient strip 10 is adapted to be bowed inwardly when looking the resilient strip 9 into engagement with the ad 1 jacent ends 8a and 8b of the abrading sheet 8. In order to lock resilient strip 10 in a diametric position with respect to the frustoconical shaped supporting surface 3, I provide a plurality of 'annularly disposed abutments which may be turned directly from the material of the frusto-conical shaped supporting surface as has been represented at 15a, 15?), 150 and 15d. The end of the resilient member 10 may be engaged in any one of the annular abutments according to the amount of tension which may be required, as the parts of the finishing tool wear, for anchoring the sheet of abrading material on the surface of the finishing tool. To facilitate removal of the sheet of abrading mate rial and the renewal thereof, I may provide a knob member 16 on the resilient strip 10 to enable the strip to be disengaged from any one of the annular abutments, and the resilient strip 9 swung away from the inner surface of the frusto-conical shaped supporting surface to allow the sheet of abrading material 8 to be removed from the tool and a fresh sheet substituted therefor in preparing the tool for subsequent operations.

In lieu of the annular abutments 15a, 156, 150 and 15d, I may employ a simplified looking device as shown in Figs, 9 and 10, wherein a strip member 17 is riveted by means of rivet members 18 to the conical shaped supporting surface 3 adjacent one edge thereof. The strip member 17 is provided with toothed abutments 17a, 17?), 170 and 17d into which the resilient member 10 may be moved to secure the required tension for anchoring the strip member 9 in position against the adjacent edge portions 8a and 8b of the abrading surface 8. i

In the operation of the finishing tool of my invention, a shoe 19 has the heel 20 thereof pressed against the peripheral edge of the frusto-conical shaped surface .3 for finishing thebreast of the heel under the abrading action of the abrading surface 8. As the abrading surface 8 becomes worn it may be readily removed and a fresh sheet replaced by the snap and resilient action of the resilient members 9 and 10.

I have found the construction of my invention highly practical and successful in olperation and while I have described one of tie preferred embodiments of my invention, I desire that it be understood that modifications may be made and that no limitations upon my invention are intended other than those imposed by the scope of the appended claims.

IVhat I claim as new and desire to secure by Letters Patent of the United States is as follows: i

1. A rotary tool comprising a drive shaft, a sleeve member secured to said drive shaft, a frusto-conical supporting portion integrally connected with said sleeve member, a sheet of abrasive material carried by said frusto conical supporting portion, said supporting portion having a longitudinally extending slot therein, a resilient strip pivotally mounted interiorly of the base of said frusto-conical portion in alignment with the slot in said frusto-conical portion and a second resilient strip connected with the extremity of said first mentioned resilient strip and engageable with one side of said frusto-conical portion for anchoring opposite ends of a sheet of abrasive material carried by said supporting portion in position for efi'ec-ting an abrading operation by rotary motion of said tool.

2. A rotary tool comprising a drive shaft, a sleeve member carried by said drive shaft, a frusto-conical supporting portion integrally connected with said. sleeve member, a flange intermediate said sleeve member and said frusto-conical supporting portion, a sheet of abrading material carried by said frusto-conical supporting portion and abutting at its lower edge with said flange, said supporting portion having a longitudinally extending slot therein for receiving adjacent edges of said abrading sheet, a resilient strip member pivotally mounted interiorly of the base of said frusto-conical portion and adapted to be swung into alignment with the slot therein, and an auxiliary spring strip connected with the opposite end of said resilient strip,said auxiliary spring strip being engageable with one side of the interior surface of said frustoconical portion for anchoring the abrasive sheet of material in position on said tool for effecting an abrading operation.-

3. A rotary finishing tool comprising a m tary drive shaft, a sleeve carried by said shaft, a frusto-conical supporting portion integrally connected with said sleeve, a flange disposed between said sleeve and said frusto-conical supporting portion, a sheet of abrading material carried by said frusto-conical supporting portion, saidsheet of abrading mate rial having adjoining ends extending through a longitudinal slot in said frusto-conical supporting portion, and a pair of resilient strips hingedly connected one to another interiorly of said frusto-conical portion, one of said strips being hingedly connected to said frustoconical portion at a point adjacent the base of the slot therein, the end of the other resilient strip being engageable with one side of said frusto-conical portion for anchoring the ends of said abrading sheet in position on 1 said frusto-conical supporting portion.

4. In a rotary finishing tool, a drive shaft, a sleeve tool carried by said drive shaft, a frusto-conical supporting portion integrally connected with said sleeve member, a plurality of spaced abutments carried by the in terior surface of said frusto-conical shaped supporting portion, a sheet of abrading material carried by said frusto-conical supporting portion and having the ends thereof ex- Lil DANIEL B. FRAZIER. 

